code: def step_impl_check_two_pngs_exist(context):
      """Check that two PNGs exist.
  
      Args:
          context (behave.runner.Context): Test context
  
      """
      import os
  
      for filename in ["MyDataset.png", "MyDataset2.png"]:
          assert os.path.exists(filename)
          os.remove(filename)
  
file_path: satpy/satpy/tests/features/steps/steps-save.py
imports: from unittest.mock import patch
  from behave import given, then, use_step_matcher, when
label_desc: Use image node_id 8 for calling a global function with example usage: step_impl_check_two_pngs_exist(context) without return types